EP1052619A3 - Adaptive filter divergence control in echo cancelers by means of amplitude distribution evaluation with configurable hysteresis - Google Patents

Adaptive filter divergence control in echo cancelers by means of amplitude distribution evaluation with configurable hysteresis Download PDF

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Publication number
EP1052619A3
EP1052619A3 EP00109862A EP00109862A EP1052619A3 EP 1052619 A3 EP1052619 A3 EP 1052619A3 EP 00109862 A EP00109862 A EP 00109862A EP 00109862 A EP00109862 A EP 00109862A EP 1052619 A3 EP1052619 A3 EP 1052619A3
Authority
EP
European Patent Office
Prior art keywords
voice
signal
adaptive filter
histogram
configurable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00109862A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1052619A2 (en
Inventor
Andre Klindworth
Erik Hogl
Ulrich Fiedler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Infineon Technologies North America Corp
Original Assignee
Infineon Technologies North America Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Infineon Technologies North America Corp filed Critical Infineon Technologies North America Corp
Publication of EP1052619A2 publication Critical patent/EP1052619A2/en
Publication of EP1052619A3 publication Critical patent/EP1052619A3/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP00109862A 1999-05-12 2000-05-10 Adaptive filter divergence control in echo cancelers by means of amplitude distribution evaluation with configurable hysteresis Withdrawn EP1052619A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13372599P 1999-05-12 1999-05-12
US133725P 1999-05-12
US476012 1999-12-29
US09/476,012 US6771701B1 (en) 1999-05-12 1999-12-29 Adaptive filter divergence control in echo cancelers by means of amplitude distribution evaluation with configurable hysteresis

Publications (2)

Publication Number Publication Date
EP1052619A2 EP1052619A2 (en) 2000-11-15
EP1052619A3 true EP1052619A3 (en) 2004-12-29

Family

ID=26831637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00109862A Withdrawn EP1052619A3 (en) 1999-05-12 2000-05-10 Adaptive filter divergence control in echo cancelers by means of amplitude distribution evaluation with configurable hysteresis

Country Status (4)

Country Link
US (1) US6771701B1 (zh)
EP (1) EP1052619A3 (zh)
JP (1) JP2001024778A (zh)
CN (1) CN1281002C (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150117441A1 (en) * 2013-10-28 2015-04-30 Michael Pascazi System and method for cell phone to cell phone signal transmission via the internet
US8588770B2 (en) * 2000-07-12 2013-11-19 Michael Pascazi System and method for cellphone to cell phone signal transmission via the internet
JP3984842B2 (ja) 2002-03-12 2007-10-03 松下電器産業株式会社 ハウリング制御装置
US6937723B2 (en) * 2002-10-25 2005-08-30 Avaya Technology Corp. Echo detection and monitoring
KR100479574B1 (ko) * 2002-11-28 2005-04-06 엘지전자 주식회사 선로 반향 제거 장치에서 유효 계수를 이용한 긴 지연시간추정 방법
US7522669B2 (en) * 2003-02-21 2009-04-21 Atheros Communications, Inc. Method and apparatus for selective disregard of co-channel transmissions on a medium
US7734034B1 (en) 2005-06-21 2010-06-08 Avaya Inc. Remote party speaker phone detection
US7764634B2 (en) * 2005-12-29 2010-07-27 Microsoft Corporation Suppression of acoustic feedback in voice communications
DE602006002132D1 (de) * 2006-12-14 2008-09-18 Harman Becker Automotive Sys beitung
JP4356758B2 (ja) * 2007-03-20 2009-11-04 株式会社デンソー Ｆｍｃｗレーダ
US8447595B2 (en) * 2010-06-03 2013-05-21 Apple Inc. Echo-related decisions on automatic gain control of uplink speech signal in a communications device
US11804233B2 (en) * 2019-11-15 2023-10-31 Qualcomm Incorporated Linearization of non-linearly transformed signals
US11394414B2 (en) * 2020-04-20 2022-07-19 Bae Systems Information And Electronic Systems Integration Inc. Method of wireless interference mitigation with efficient utilization of computational resources
JP7552137B2 (ja) 2020-08-13 2024-09-18 沖電気工業株式会社 音声検出装置、音声検出プログラム、及び音声検出方法
US12073837B2 (en) * 2021-06-18 2024-08-27 The Boeing Company Speech detection using image classification

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764955A (en) * 1985-10-30 1988-08-16 International Business Machines Corp. Process for determining an echo path flat delay and echo canceler using said process
US5740242A (en) * 1995-03-22 1998-04-14 Nec Corporation Echo canceler
EP0869624A2 (en) * 1997-04-02 1998-10-07 AT&T Corp. Processing of echo signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631958A (en) * 1994-10-04 1997-05-20 Coherent Communications Systems Corp. Automatic echo cancellation for an integrated services digital network interface
JP2000252881A (ja) * 1999-02-25 2000-09-14 Mitsubishi Electric Corp ダブルトーク検知装置並びにエコーキャンセラ装置およびエコーサプレッサー装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764955A (en) * 1985-10-30 1988-08-16 International Business Machines Corp. Process for determining an echo path flat delay and echo canceler using said process
US5740242A (en) * 1995-03-22 1998-04-14 Nec Corporation Echo canceler
EP0869624A2 (en) * 1997-04-02 1998-10-07 AT&T Corp. Processing of echo signals

Also Published As

Publication number Publication date
CN1281002C (zh) 2006-10-18
CN1275001A (zh) 2000-11-29
JP2001024778A (ja) 2001-01-26
EP1052619A2 (en) 2000-11-15
US6771701B1 (en) 2004-08-03

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